html {
    width: 100%;
    height: 100%;

    body {
        width: 100%;
        height: 100%;
        
        .header {
            width: 98%;
            height: 46px;
            line-height: 46px;
            box-sizing: border-box;
            padding: 0px 20px;
            justify-content: space-between;
            border-bottom: 1px solid #ccc;
            margin-bottom: 5px;

            p {
                color: #4294ff;
                border-bottom: 3px solid #aaD9f7;
                // padding-bottom: 10px;
            }

            button {
                padding: 7px 10px;
                color: #005177;
                background-color: #aaD9f7;
                border-radius: 21px;
            }
        }
        main {
            width: 100%;
            // 
            .sellCourse {
                width: 95%;
                margin-bottom: 40px;
                h3 {
                    width: 100%;
                    font-weight: normal;
                    margin-bottom: 10px;
                    margin-left: 20px;
                }

                .course {
                    width: 95%;
                    height: 240px;
                    border-radius: 20px;
                    box-shadow: 0px 5px 10px #aaa;

                    .course-top {
                        
                        img {
                            width: 100%;
                            height: 180px;
                            border-radius: 20px 20px 0 0;
                        }
                    }
                    .course-bu{
                        box-sizing: border-box;
                        padding: 3px 10px;
                        h4{
                            font-weight: normal;
                            line-height: 22px;
                        }
                        p{
                            line-height: 20px;
                            color: #9a9a9a;
                        }
                    }
                }
            }
            .message{
                width: 100%;
                .ul-box{
                    background: #ddd;
                    width: 100%;
                    li{
                        width: 100%;

                        margin-bottom: 15px;
                        box-sizing: border-box;
                        padding: 10px 20px;
                        .li-top{
                            margin-bottom: 8px;
                            img{
                                width: 60px;
                                height: 60px;
                                border-radius: 50%;
                                margin-right: 20px;
                            }
                            .mess{
                                box-sizing: border-box;
                                padding-top: 10px;
                                h5{
                                    margin-bottom: 5px;
                                }
                                p{
                                    color: #9a9a9a;
                                }
                            }
                        }
                        p{
                            line-height: 20px;    
                            margin-bottom: 15px;
                            .disBtn{
                                color: #9a9a9a;
                            }
                        }
                        .imgs{
                            flex-wrap: wrap;
                            justify-content: space-between;
                            li{
                                width: 47%;
                                padding: 0;
                                height: 120px;
                                img{
                                    width: 100%;
                                    height: 100%;
                                    margin-bottom: 10px;
                                }
                                
                            }
                        }
                    }
                    
                }
            }
        }
    }
}